Classification and Difference of Shearing Machine
Classification
According to the power principle, it can be divided into the mechanical shearing machine and hydraulic shearing machine.
(1) The mechanical shearing machine adopts the resistance key form of the clutch structure and the open gear transmission and uses more advanced electrical appliances (footswitch, manual switch) to operate, the all-steel welding structure is simple and easy to operate, beautiful in appearance, and low energy consumption.
(2) The hydraulic shearing machine is beautiful in appearance, excellent in performance, and stable in quality. It uses a moving upper blade and a fixed lower blade and uses a reasonable blade gap to apply shearing force to metal plates of various thicknesses so that the plates can be the required size breaks apart.
According to the movement mode of the upper knife, it can be divided into the swing beam shearing machine and guillotine shearing machine.
(1) The swing beam shearing machine is a shearing machine driven by hydraulic pressure. The upper knife frame of the swing beam shearing machine swings in an arc around a fixed axis during the cutting process. Through the action of leverage, the fulcrum is small and can be Improve the life of the cutting blade and the life of the machine, the whole machine has a compact structure and can adjust the stroke of the upper tool post, which greatly improves the work efficiency.
(2) The guillotine shearing machine has a strong shearing force and a good shearing effect. Advantages have always been respected by the majority of sheet metal processing. The guillotine shearing machine adopts a frame structure and adopts all-steel welding; four corners and octagonal right-angle guide rails, high precision and good rigidity, and hydraulic preloading. The hydraulic system adopts a two-way cartridge integrated valve; the entire system adopts; and can be equipped with a stroke digital display, a photoelectric protection device, and a mobile workbench (for easy mold replacement). The guillotine shearing machine has a double-acting function of an upper slide and a lower hydraulic cushion, The working pressure stroke can be adjusted within the specified range according to the process requirements, and the operation is simple and centralized control by buttons.
According to the operation mode, it can be divided into the ordinary shearing machine and CNC shearing machine.
(1) Ordinary shearing machines are mechanical operations that need to be performed manually.
(2) CNC shearing machine generally uses general-purpose or special-purpose computers to achieve digital program control, and they usually control mechanical quantities such as position, angle, and speed. The energy flows to the relevant switch. The production of the CNC shearing machine relies on the emergence of data carriers and binary data operations.
The difference between the guillotine shearing machine and swing beam shearing machine
1. The precision of the guillotine shearing machine can be higher (the precision of the shearing machine, also called the straightness of the shearing plate), which is twice that of the swing beam shearing machine.
2. The cutting angle of the guillotine shearing machine can be adjusted according to different plates, while the shearing angle of the swing beam shearing machine is fixed.
3. The guillotine shearing machine has 4 blade-edge surfaces, while the swing beam shearing machine has only 2 blade-edge surfaces. In the process of use, the knife-edge surface can be replaced, and the guillotine shears have more knife-edge surfaces and longer service life.
4. The guillotine shearing machine has a wider range of use and is suitable for most metal sheet shearing processing. Stainless steel, aluminum alloy, and other metals can be processed.
5. The production cost of the guillotine shearing machine is higher. From the perspective of cost-saving, if the shearing precision is very low and the shearing thickness is relatively thin (plates below 8mm) Choose to buy pendulum shears.
6. For sheet metal processing over 8mm, guillotine shears must be selected, because the principle of swing beam shearing machine restricts it from cutting thick plates.